We conduct two sets of experiments to evaluate the proposed color image warping technique. The first experiment measures the SISR accuracy before and after incorporating the cross-channel terms to intra-channel warping, at various scaling factors and using different real time interpolation functions. The second experiments compares our technique with the state of the art SISR method Global Regression (GR) proposed by Timofte-De Smet-Van Gool in [1]}, using the released Matlab source code. The GR method is the fastest SISR method proposed in recent years to the best of our knowledge, and hence is chosen for comparison in our experiment. It should be mentioned that, the weight GR is significantly higher than our linear isotropic scheme used for testing.
